Synthesis and Magnetic Properties of BaFe12-XAlXO19 Nanopowders

被引：9
作者：
Moon, K. W. [1 ]
Jeon, K. W. [1 ]
Kim, J. [1 ]
机构：
[1] Hanyang Univ, Dept Met & Mat Engn, Ansan 425791, Gyeonggi Do, South Korea
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期
关键词：
Barium compounds; ferrimagnetic materials; high coercivity; nanocomposite magnet; BARIUM FERRITE; HIGH COERCIVITY; HEXAFERRITE; BA; PRECURSOR;
D O I：
10.1109/TMAG.2009.2024125
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The effect of Al contents on the magnetic properties of Ba hexaferrite powders has been investigated in order to increase the coercivity. In this study, a self-propagating combustion method has been developed to form Ba hexaferrite nanopowders. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis showed that nanopowders with a size of 40-60 nm were successfully produced. With increasing Al contents, the coercivity of the nanopowders increased until the powders had a magnetoplumbite structure. We obtained a coercivity of 7559 Oe in BaFe10Al2O19 powders calcined at 850 for 1 h.
引用
收藏
页码：4405 / 4408
页数：4
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